2017
灞婇珮涓夌墿鐞嗕竴杞涔犲崟鍏冩祴璇曢锛?/p>
5
锛?/p>
A
绗簲鍗曞厓
鏈烘鑳?/p>
鏈瘯鍗峰垎涓虹
I
鍗凤紙閫夋嫨棰橈級鍜岀
II
鍗凤紙闈為�夋嫨棰橈級涓ら儴鍒嗭紝婊″垎
110
鍒嗭紝鑰冭瘯鏃堕棿
120
鍒嗛挓
鍛介浜猴細寮犺
瀹￠浜猴細鐜嬩级淇?/p>
涓�銆侀�夋嫨棰橈細鏈鍏?/p>
12
灏忛锛屾瘡棰?/p>
4
鍒嗭紝
鍏?/p>
48
鍒嗐�?/p>
1-8
棰樹负鍗曢�夐锛?/p>
9-12
涓哄閫夐锛?/p>
鍏ㄩ�夊鐨勫緱
4
鍒嗭紝
閫夊浣嗕笉鍏ㄧ殑寰?/p>
2
鍒嗭紝鏈夐敊閫夋垨涓嶉�夌殑寰?/p>
0
鍒嗐�?/p>
1
銆?/p>
鑷劧鐜拌薄涓暣钘忕潃璁稿鐗╃悊鐭ヨ瘑锛?/p>
濡傚浘鎵�绀轰负涓�涓煍杞交璐ㄦ棤寮规�х洓姘磋锛?/p>
鏌愪汉
浠庝晶闈㈢紦鎱㈡帹琚嬪浣垮畠鍙樺舰锛屽垯姘寸殑閲嶅姏鍔胯兘
A
锛庡澶?/p>
B
锛庡彉灏?/p>
C
锛庝笉鍙?/p>
D
锛庝笉鑳界‘瀹?/p>
2
銆佹煇鍚屽浠ユ甯搁�熷害浠庝竴妤肩櫥涓婁笁妤硷紝浠栫櫥妤肩殑鍔熺巼鏈�鎺ヨ繎浜?/p>
A
锛?/p>
5 W B
锛?/p>
50 W C
锛?/p>
500 W D
锛?/p>
5 000 W
3
銆佸鍥剧敳鎵�绀猴紝闈欐浜庡厜婊戞按骞抽潰涓婂潗鏍囧師鐐瑰鐨勫皬鐗?/p>
鍧楋紝鍦ㄦ按骞虫媺鍔?/p>
F
浣滅敤涓嬶紝娌?/p>
x
杞存柟鍚戣繍鍔紝鎷夊姏
F
闅忕墿
浣撴墍鍦ㄤ綅缃潗鏍?/p>
x
鐨勫彉鍖栧叧绯诲鍥句箼鎵�绀猴紝
鍥剧嚎涓烘き鍦嗙殑
涓婂崐閮ㄥ垎锛庡垯灏忕墿鍧楄繍鍔ㄥ埌
x
0
澶勬椂
F
鍋氱殑鎬诲姛涓?/p>
A
锛?/p>
0 B.
1
2
F
m
x
0
C.
蟺
4
F
m
x
0
D.
蟺
4
x
2
0
4
銆佸鍥炬墍绀猴紝
ABCD
鏄竴涓泦寮忓鍣紝鐩嗗唴渚у涓庣泦搴?/p>
BC
鐨勮繛鎺ュ閮芥槸涓�娈典笌
BC
鐩稿垏鐨勫渾寮э紝
B
銆?/p>
C
鍦ㄦ按骞崇嚎涓婏紝
鍏惰窛绂?/p>
d
锛?/p>
0.50
m
锛庣泦杈圭紭鐨勯珮搴︿负
h
锛?/p>
0.30
m
锛庡湪
A
澶勬斁涓�涓川閲忎负
m
鐨勫皬鐗╁潡骞惰鍏朵粠闈欐鍑哄彂涓嬫粦锛庡凡鐭ョ泦鍐呬晶澹佹槸鍏?/p>
婊戠殑锛岃�岀泦搴?/p>
BC
闈笌灏忕墿鍧楅棿鐨勫姩鎽╂摝鍥犳暟涓?/p>
渭
锛?/p>
0.10.
灏忕墿鍧楀湪鐩嗗唴鏉ュ洖婊?/p>
鍔紝鏈�鍚庡仠涓嬫潵锛屽垯鍋滀笅鐨勪綅缃埌
B
鐨勮窛绂讳负
A
锛?/p>
0.50 m B
锛?/p>
0.25 m C
锛?/p>
0.10 m D
锛?/p>
0
5
銆佽川閲忎负
m
鐨勪汉閫犲湴鐞冨崼鏄熶笌鍦板績鐨勮窛绂讳负
r
鏃讹紝寮曞姏鍔胯兘鍙〃绀轰负
E
p
锛濓紞
GMm
r
锛屽叾涓?/p>
G
涓哄紩鍔涘父閲忥紝
M
涓哄湴鐞冭川閲忥紟璇ュ崼鏄熷師鏉ュ湪鍗婂緞涓?/p>
R
1
鐨勮建閬撲笂缁曞湴鐞冨仛鍖�閫熷渾鍛ㄨ繍鍔紝鐢变簬鍙楀埌鏋佺█钖勭┖姘旂殑鎽╂摝浣?/p>
鐢紝椋炶涓�娈垫椂闂村悗鍏跺渾鍛ㄨ繍鍔ㄧ殑鍗婂緞鍙樹负
R
2
锛屾杩囩▼涓洜鎽╂摝鑰屼骇鐢熺殑鐑噺涓?/p>
A
锛?/p>
GMm(
1
R
2
锛?/p>
1
R
1
)
B
锛?/p>
GMm(
1
R
1
锛?/p>
1
R
2
)
C.
GMm
2
(
1
R
2
锛?/p>
1
R
1
)
D.
GMm
2
(
1
R
1
锛?/p>
1
R
2
)
6
銆佸皢灏忕悆浠?/p>
10 m/s
鐨勫垵閫熷害浠庡湴闈㈢珫鐩村悜涓婃姏鍑猴紝鍙栧湴闈负闆跺娍鑳介潰锛屽皬鐞?/p>
鍦ㄤ笂鍗囪繃绋嬩腑鐨勫姩鑳?/p>
E
k
銆侀噸鍔涘娍鑳?/p>
E
p
涓庝笂鍗囬珮搴?/p>
h
闂寸殑鍏崇郴鍒嗗埆濡傚浘涓袱鐩寸嚎
鎵�绀猴紟鍙?/p>
g
锛?/p>
10 m/s
2
锛屼笅鍒楄娉曟纭殑鏄?/p>
A
锛庡皬鐞冪殑璐ㄩ噺涓?/p>
0.2 kg
B
锛庡皬鐞冨彈鍒扮殑闃诲姏
(
涓嶅寘鎷噸鍔?/p>
)
澶у皬涓?/p>
0.20 N
C
锛庡皬鐞冨姩鑳戒笌閲嶅姏鍔胯兘鐩哥瓑鏃剁殑楂樺害涓?/p>
20
13
m
D
锛庡皬鐞冧笂鍗囧埌
2 m
鏃讹紝鍔ㄨ兘涓庨噸鍔涘娍鑳戒箣宸负
0.5 J